KR20230106941A - Desplay device and controlling method thereof - Google Patents

Abstract

The present disclosure provides a cabinet constituting a modular display device and a method for controlling the cabinet. When it is detected that a plurality of display modules, a first interface, a second interface connected to a first cabinet adjacent to the cabinet, a memory storing at least one text image, and a test device are connected to the first interface, the cabinet includes the at least one and a processor controlling the plurality of display modules to display one test image and transmitting the at least one test image to the first cabinet through the second interface.

Description

Display device and control method of the display device {DESPLAY DEVICE AND CONTROLLING METHOD THEREOF}

The present disclosure relates to a display device and a control method of the display device. More specifically, it relates to a cabinet constituting a modular display device and including a plurality of display modules, and a control method thereof.

The development of display technology has also diversified the screen size of display devices. In the past, only production of display devices with a limited size was possible, but recently, it has become possible to produce large-screen display devices beyond the limits of display size, and accordingly, the use of large-screen display devices is increasing in real life. . In particular, the use of modular display devices that provide an extended display screen by combining a plurality of display modules is increasing. For example, a large-screen display device corresponds to a digital signage billboard that displays an outdoor advertisement through a display device after being installed in a place with a large floating population, such as a subway station or a bus stop.

Since the modular display device can flexibly expand or reduce the size of a display screen according to the number of display modules and their coupling relationship, convenience is provided to users using large-sized display devices. Meanwhile, the modular display device receives image information about a specific image from a separate device (eg, a screen controller, etc.) in order to output a specific image through the entire screen implemented by a plurality of display modules. More specifically, when image information is received in a specific display module among a plurality of display modules constituting the modular display device, the specific display module receiving the image information transmits image information to other adjacent display modules. Accordingly, all display modules constituting the modular display module receive image information and output the received image information, so that an image is displayed on the screen of a modular display implemented through a plurality of display modules.

However, in order to transmit and receive image information, a connection between a plurality of display modules, particularly between a plurality of display modules disposed adjacent to each other, must be appropriately made. When the connection for transmission and reception of image information between specific display modules is disconnected or not properly established, transmission and reception of image information between corresponding display modules is not possible, and transmission and reception of image information between other display modules is also affected. Therefore, in order for a modular display device implemented through a plurality of display modules to operate, an accurate connection between the plurality of display modules is required. However, in order to determine whether the connection between each display module has been accurately made, a screen controller, which is a separate device, is required after connecting all display modules. This is because, after applying image information to the display module using the screen controller, it is necessary to observe whether the image is accurately displayed on the entire display module. In addition, when it is determined that the connection of a specific display module is disconnected, the entire display module must be disconnected or the modular display device must be disassembled to attempt to connect the display module, which results in time and cost consumption. In particular, even when a new display module is added or replaced with a new display module, an unnecessary process of determining connectivity between all display modules must be accompanied.

The present disclosure has been made due to the above-mentioned necessity, and an object of the present disclosure is to transmit and receive a test image to another adjacent cabinet when a cabinet constituting a modular display device detects a connection with a test device, and display the test image in the cabinet and other cabinets. It is an object of the present invention to provide a cabinet and a control method for determining the connection between a cabinet and other cabinets, that is, whether or not the connection is properly made by observing a test image.

However, the problem to be solved by the present invention is not limited to the above problem, and other problems may exist.

In a cabinet constituting a modular display device according to an embodiment of the present disclosure for achieving the above object, a plurality of display modules, a first interface, a second interface connected to a first cabinet adjacent to the cabinet, at least When it is detected that a memory storing one text image and a test device are connected to the first interface, the plurality of display modules are controlled to display the at least one test image, and the at least one test image is displayed on the second interface. and a processor that transmits the at least one test image to the first cabinet through the second interface, and the at least one test image is displayed on the first cabinet that has received the at least one test image through the second interface.

In addition, the processor controls the plurality of display modules to display a first test image among a plurality of test images stored in the memory when it detects that the test device is connected to the first interface, and the first test image While this is being displayed, if a command requesting a change of the image displayed on the plurality of display modules is received from the test device, the plurality of display modules are controlled to display a second test image among the plurality of test images, and the plurality of display modules are displayed. A second test image is transmitted to the first cabinet through the second interface, and the second test image is displayed on the first cabinet receiving the second test image through the second interface.

Also, the command is received from the test device when a button provided in the test device is pressed.

In addition, each of the plurality of display modules includes a plurality of light emitting elements constituting a plurality of pixels, the plurality of light emitting elements include a red light emitting element, a green light emitting element, and a blue light emitting element, and the plurality of test modules The image includes a white image, a red image, a green image, and a blue image, and the processor controls the plurality of display modules to display the white image when detecting that the test device is connected to the first interface, , Controls the plurality of display modules to sequentially display the red image, the green image, and the blue image as a command requesting a change of the image displayed on the plurality of display modules is received from the test device a plurality of times. .

The cabinet may further include a third interface connected to a second cabinet adjacent to the cabinet, and the processor may, when a test image is received from the second cabinet through the third interface, the received test image. is displayed, and the received test image is transmitted to the first cabinet through the second interface.

Also, the received test image is received from the second cabinet as the test device is connected to the second cabinet after being separated from the cabinet.

Further, the processor, when a test image is received from the first cabinet through the second interface, displays the received test image and transmits the received test image to the second cabinet through the third interface. and the test image received from the first cabinet is displayed on the first cabinet receiving the test image through the third interface.

Also, the at least one test image is transmitted to the first cabinet through the second interface as the first cabinet is normally connected to the second interface.

In the control method of a cabinet constituting a modular display device according to another aspect of the present invention for solving the above problems, detecting that a memory and a test device storing at least one text image are connected to a first interface controlling a plurality of display modules to display at least one test image stored in a memory and transmitting the at least one test image to a first cabinet connected to the cabinet through a second interface; One test image is displayed on the first cabinet receiving the at least one test image through the second interface.

In addition, when it is detected that the test device is connected to the first interface, controlling the plurality of display modules to display a first test image among a plurality of test images stored in the memory, the first test image is displayed receiving a command requesting a change of the image displayed on the plurality of display modules from the test device, displaying a second test image among the plurality of test images when receiving a command requesting a change of the image. The method further includes controlling the plurality of display modules and transmitting the second test image to the first cabinet through the second interface, wherein the second test image is transmitted to the first cabinet through the second interface. 2 Displayed on the first cabinet that received the test image.

Also, the command is received from the test device when a button provided in the test device is pressed.

In addition, each of the plurality of display modules included in the cabinet includes a plurality of light emitting elements constituting a plurality of pixels, and the plurality of light emitting elements include a red light emitting element, a green light emitting element, and a blue light emitting element. , The plurality of images stored in the memory include a white image, a red image, a green image, and a blue image, and when it is detected that the test device is connected to the first interface, the plurality of display modules display the white image and when a command requesting a change of the images displayed on the plurality of display modules is received from the test device a plurality of times, the plurality of displays to sequentially display the red image, the green image, and the blue image. Further comprising controlling the module.

In addition, receiving a test image from a second cabinet adjacent to the cabinet through a third interface, displaying the received test image, and transmitting the received test image to the first cabinet through the second interface Include more steps.

Also, the received test image is received from the second cabinet as the test device is connected to the second cabinet after being separated from the cabinet.

In addition, the step of receiving a test image from the first cabinet through the second interface, the step of controlling the plurality of display modules to display the received test image, and the step of displaying the received test image through the third interface. The method may further include transmitting the test image to the second cabinet, wherein the test image received from the first cabinet is displayed on the first cabinet receiving the test image through the third interface.

Also, the at least one test image is transmitted to the first cabinet through the second interface as the first cabinet is normally connected to the second interface.

According to various embodiments of the present disclosure, connectivity of all display modules constituting a modular display device may be determined without a separate screen controller by determining connectivity whenever a connection is made between adjacent display modules.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

1 is a diagram for explaining a cabinet constituting a modular display device according to an embodiment of the present disclosure.
2 is a diagram for explaining a modular display device implemented with a plurality of cabinets according to an embodiment of the present disclosure.
3 is a diagram for explaining a method of checking connectivity between adjacent cabinets according to an embodiment of the present disclosure.
4 is a block diagram for explaining a configuration of a cabinet according to an exemplary embodiment of the present disclosure.
5 is a flowchart schematically illustrating a method of controlling a cabinet according to an embodiment of the present disclosure.
6 is an exemplary diagram schematically illustrating a method of confirming connectivity between a cabinet and another adjacently connected cabinet according to an embodiment of the present disclosure.
7 is a flowchart schematically illustrating a method of changing a test image displayed in a cabinet according to an embodiment of the present disclosure.
8 is an exemplary diagram of a test device according to an embodiment of the present disclosure.
9 is an exemplary diagram for explaining a light emitting device constituting a pixel of a display domain included in a cabinet according to an embodiment of the present disclosure.
10 is a flowchart schematically illustrating a cabinet control method for identifying connectivity between a plurality of cabinets in a first direction according to an embodiment of the present disclosure.
11 is an exemplary diagram schematically illustrating a method of determining connectivity between a cabinet and a first cabinet and a connectivity between a cabinet and a second cabinet based on a test image received from a second cabinet, according to an embodiment of the present disclosure; am.
12 is a diagram for explaining a method of determining connectivity of a plurality of cabinets constituting a modular display in a first direction, according to an embodiment of the present disclosure.
13A and 13B are views for explaining a method of determining connectivity of a plurality of cabinets implementing a modular display in a first direction, according to an embodiment of the present disclosure.
14 is a flowchart schematically illustrating a cabinet control method for identifying connectivity between a plurality of cabinets in a second direction according to an embodiment of the present disclosure.
15 is an exemplary diagram for explaining a cabinet control method for identifying connectivity between a plurality of cabinets in a second direction according to an embodiment of the present disclosure.
16 is a diagram for explaining a method of determining connectivity of a plurality of cabinets implementing a modular display in a second direction, according to an embodiment of the present disclosure.
17 is an exemplary view schematically illustrating that a modular display device implemented with a plurality of cabinets outputs an image according to an embodiment of the present disclosure.
18 is a detailed block diagram of a cabinet according to an embodiment of the present disclosure.

The terms used in the embodiments of the present disclosure have been selected from general terms that are currently widely used as much as possible while considering the functions in the present disclosure, but they may vary depending on the intention or precedent of a person skilled in the art, the emergence of new technologies, and the like. . In addition, in a specific case, there is also a term arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the disclosure. Therefore, terms used in the present disclosure should be defined based on the meaning of the term and the general content of the present disclosure, not simply the name of the term.

In the present disclosure, expressions such as “has,” “can have,” “includes,” or “can include” indicate the presence of a corresponding feature (eg, numerical value, function, operation, or component such as a part). , which does not preclude the existence of additional features.

The expression at least one of A and/or B should be understood to denote either "A" or "B" or "A and B".

Expressions such as "first," "second," "first," or "second," used in the present disclosure may modify various elements regardless of order and/or importance, and may refer to one element as It is used only to distinguish it from other components and does not limit the corresponding components.

A component (e.g., a first component) is "(operatively or communicatively) coupled with/to" another component (e.g., a second component); When referred to as "connected to", it should be understood that an element may be directly connected to another element, or may be connected through another element (eg, a third element).

Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, the terms "comprise" or "consist of" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other It should be understood that the presence or addition of features, numbers, steps, operations, components, parts, or combinations thereof is not precluded.

In the present disclosure, a “module” or “unit” performs at least one function or operation, and may be implemented in hardware or software or a combination of hardware and software. In addition, a plurality of "modules" or a plurality of "units" are integrated into at least one module and implemented by at least one processor (not shown), except for "modules" or "units" that need to be implemented with specific hardware. It can be.

1 is a diagram for explaining a cabinet constituting a modular display device according to an embodiment of the present disclosure.

The cabinet 100 constituting the modular display device 1000 according to an embodiment of the present disclosure includes a plurality of display modules 110 . For example, referring to FIG. 1 , a cabinet 100 may include nine display modules 110-1 to 110-9 (hereinafter referred to as 110).

According to an embodiment of the present disclosure, the plurality of display modules 110 included in the cabinet 100 may be arranged in a matrix form. For example, referring to FIG. 1 , nine display modules 110 - 1 to 110 - 9 may be arranged in a 3 x 3 matrix to form a cabinet 100 . At this time, although not clearly shown in the drawings, each of the display modules 110-1 to 110-9 included in the cabinet 100 may be physically connected. Meanwhile, the plurality of display modules 110 arranged in a 3 x 3 matrix form corresponds to an example of the present disclosure, and the display module 110 included in the display module 110 and the cabinet 100 The number of may be variously changed.

In addition, the cabinet 100 may include a base plate (not shown) on which each of the display modules 110-1 to 110-9 may be mounted. Here, the base plate (not shown) may be implemented in a form in which each display module 110 can be mounted on the front surface of the base plate.

Also, although not clearly shown in the drawings, the cabinet 100 according to an embodiment of the present disclosure may include a plurality of coupling parts capable of coupling with other cabinets. Accordingly, the plurality of cabinets 100 may be disposed adjacent to each other to form a screen of the modular display device 1000 . In addition, the cabinet 100 may also include a driving circuit and a backlight unit.

2 is a diagram for explaining a modular display device implemented with a plurality of cabinets according to an embodiment of the present disclosure.

According to one embodiment of the present disclosure, the modular display device 1000 may include a plurality of cabinets 100 . At this time, the modular display device 1000 is one large display device such as a digital signage, an electronic display, etc., in which a plurality of cabinets 100 including a plurality of display modules 110 are combined or assembled. , or may be implemented as a single small display device such as a monitor for a personal computer or a TV. However, it is not limited thereto.

Meanwhile, the plurality of cabinets 100 are arranged in a matrix form to form one modular display device 1000 . For example, referring to FIG. 1 , four cabinets 100-a, 100-b, 100-c, and 100-d are arranged in a 2x2 matrix to implement a modular display device 1000.

At this time, the modular display device 1000 outputs an image through the plurality of cabinets 100 constituting the modular display device 1000 . Specifically, when each cabinet 100 is combined according to a preset arrangement, the modular display device 1000 is implemented by combining display panels of a plurality of display modules 110 included in each cabinet 100. Displays a specific image through the entire screen. At this time, a part of a specific image is output from each cabinet 100 .

For example, referring to FIG. 2 , the upper left cabinet 100-a displays the upper left area of a specific image, and the lower left cabinet 100-c displays the lower left area of a specific image. The upper right cabinet 100-b may display the upper right area of the image, and the lower right cabinet 100-d may display the lower right area of the image. That is, each of the cabinets 100-a, 100-b, 100-c, and 100-d displays an image of one area of the entire image corresponding to the position of each cabinet in the modular display device 1000.

Meanwhile, it goes without saying that the modular display device 1000 can be formed into a modular display device 1000 having a different size or resolution by combining various numbers of cabinets 100 . In addition, in order to implement the modular display device 1000, the plurality of cabinets 100 may be arranged in various matrix forms other than the 2x2 matrix shown in FIG. 2 . That is, according to an embodiment of the present invention, a plurality of cabinets may be arranged in a matrix of M x N (M and N are natural numbers equal to or greater than 1).

Meanwhile, the modular display device 1000 provides image information about an image output through a screen implemented by a plurality of cabinets 100 (or an entire screen in which display panels of a plurality of display modules included in a plurality of cabinets are combined). It can be received from the screen controller 600. More specifically, at least one cabinet among the plurality of cabinets 100 constituting the modular display device 1000 receives image information from the screen controller 600 . And, at least one cabinet receiving the video information transmits the received video information to another adjacent cabinet. In this way, as the cabinet receiving the image information transmits the image information to other adjacent cabinets, all cabinets constituting the modular display device 1000 can share the image information.

Therefore, in order to transmit and receive image information, a connection between the plurality of cabinets 100, particularly between a plurality of cabinets disposed adjacent to each other, must be appropriately made. When a connection for transmission and reception of image information between specific cabinets is disconnected or not properly established, transmission and reception of image information between corresponding cabinets is impossible, and consequently, transmission and reception of image information between other cabinets is also affected. Therefore, prior to controlling the modular display device 1000, a process of identifying whether a connection for transmitting/receiving image information between the respective cabinets 100 constituting the modular display device 1000 has been correctly made must be accompanied.

However, conventionally, after all connections between the plurality of cabinets 100 (or the plurality of display modules 110) constituting the modular display device 1000 are made, the entire cabinet 100 (or the entire display module) is used to output an image. (110)), by observing the image output from the entire cabinet 100 (or the entire display module 110), it is determined whether the connection between the cabinets 100 (or the display modules 110) is correctly made. judged. That is, by searching for a cabinet 100 (or display module 110) in which an image is not output or an image output is abnormal, another cabinet 100 adjacent to the corresponding cabinet 100 (or display module 110) ( Or, a connection state with another display module 110) was repaired.

However, this involves an unnecessary process of disengaging even the coupling of other cabinets (or other display modules) that have already been normally connected, and the above-mentioned unnecessary process is repeated whenever a new cabinet (display module) is added or replaced. It should be. In order to solve this problem, the present disclosure makes it possible to identify connection relationships between cabinets 100 in the course of implementing the modular display device 1000 .

That is, before the connection of all cabinets constituting the modular display device 1000 is completed, whenever each cabinet 100 is connected, it is identified whether or not the connection with other adjacent cabinets is correctly made. Accordingly, the aforementioned unnecessary process is not required, and furthermore, accuracy in determining connectivity between cabinets can be increased. Hereinafter, an embodiment of the present disclosure related to this will be described in detail.

3 is a diagram for explaining a method of checking connectivity between adjacent cabinets according to an embodiment of the present disclosure.

Referring to FIG. 3 , three cabinets 100-E, 100-F, and 100-G constituting the modular display device 1000 are disposed on an xy plane. At this time, each cabinet 100 is connected to an adjacent cabinet for transmission and reception of image information. Specifically, the cabinet 100-E disposed on the lower side and the cabinet 100-F disposed in the center are connected to a first cable ( 300-1), and the central cabinet 100-F and the upper cabinet 100-G are connected through a second cable 300-2. However, it is not limited thereto, and the cabinet 100 may transmit and receive image information using various communication methods through a communication unit (not shown) other than cables (first cable and second cable).

Meanwhile, according to an embodiment of the present disclosure, in order to determine whether the connection between the three cabinets 100 disposed on the xy plane is correctly made, the centrally disposed cabinet 100-F is determined by the cabinet 100-F. ) to receive a test image for determining connectivity with another cabinet 100-G coupled thereto. Specifically, when the test device 200 for verifying the connectivity between the plurality of cabinets 100 is connected to the cabinet 100-G disposed on the upper side, the cabinet 100-F disposed in the center is the test device ( 200) and receives a test image from the cabinet 100-G disposed on the upper side. In addition, the cabinet 100-F disposed in the center displays the received test image and transmits the received test image to the cabinet 100-E disposed on the lower side and coupled thereto.

At this time, if the connection between the cabinet 100-F disposed in the center and the cabinet 100-G disposed on the upper side is not made or is incorrectly made, the cabinet 100-F disposed in the center is placed on the upper side. will not receive a test image from the cabinet 100-G disposed in . In addition, the cabinet 100-E disposed on the lower side will not receive the test image of the cabinet 100-G disposed on the upper side from the cabinet 100-F disposed in the center. As a result, a test image for determining connectivity is displayed only in the cabinet 100-G disposed on the upper side. Through this, the user can identify that the cabinet 100-G disposed on the upper side and the cabinet 100-F disposed in the center are not properly connected. Accordingly, a user can quickly correct connections between a plurality of cabinets that are improperly connected.

Meanwhile, according to an embodiment of the present disclosure, each of the cabinets 100-E, 100-F, and 100-G transmits image information through the cables 300-1 and 300-2, as well as the arrangement of each cabinet. Various information such as coordinate information corresponding to a location and ID information corresponding to each cabinet may be transmitted and received.

4 is a block diagram for explaining a configuration of a cabinet according to an exemplary embodiment of the present disclosure.

Referring to FIG. 4 , a cabinet 100 includes a plurality of display modules 110 , a first interface 120 , a second interface 130 , a memory 140 and a processor 150 .

According to an embodiment of the present disclosure, the plurality of display modules 110 may output images through a display panel (not shown) included in each display module 110 . To this end, display modules (110-1, 110-2, ..., 110-n, where n is a natural number of 2 or more), each implemented as an LED display module including a plurality of light emitting diodes (LEDs) It can be. Specifically, the display module (110-1, 110-2, ..., 110-n, hereinafter referred to as 100) may include a plurality of light emitting elements constituting a plurality of pixels. In this case, a plurality of light emitting devices may be arranged in a matrix form (eg l x m, where l and m are natural numbers) to implement a plurality of pixels.

Meanwhile, the light emitting device of the display module 110 according to an embodiment of the present disclosure may be implemented as a micro LED. Here, the micro LED is an LED with a size of about 5 to 100 micrometers, and means a subminiature light emitting device that emits light by itself without a color filter. However, such an LED display module is only an example, and the display module may be implemented with an organic LED (OLED), an active-matrix OLED (AMOLED), a plasma display panel (PDP), or the like. Hereinafter, for convenience of explanation, it is assumed that the display module according to an embodiment of the present disclosure is an LED display module.

Meanwhile, in the case of not only each cabinet 100 constituting the modular display device 1000 but also a plurality of display modules 110 included in the same cabinet, images displayed by each display module may be different. Specifically, referring to FIG. 2 again, nine display modules included in the cabinet 100-a at the upper left of the modular display device 1000 are assigned to the cabinet 100-a at the upper left of a specific image. The image corresponding to the upper left region is divided and displayed. That is, each display module 110 outputs a portion corresponding to the position where each display module 110 is placed among a portion of the entire image set to be output to the cabinet 100 or allocated to the cabinet 100. .

Referring back to FIG. 4 , according to an embodiment of the present disclosure, the cabinet 100 may include the first interface 120 . In this case, the cabinet may be connected to the test device 200 through the first interface 120 .

Also, according to an embodiment of the present disclosure, the cabinet 100 may include a second interface 130 . In this case, the cabinet 100 may be connected to other adjacent cabinets through the second interface 130 . In addition, the cabinet 100 can transmit and receive various information (eg, image information, coordinate information, ID information, etc.) with another adjacent cabinet connected to the cabinet through a cable connected to the second interface 130. there is.

Meanwhile, referring to FIG. 4 , although the first interface 120 and the second interface 130 are shown as separate configurations, the first interface 120 and the second interface 130 have a plurality of pins. It may be implemented by being separated into at least one pin corresponding to each interface (first interface and second interface) within one interface including. In this case, at least one pin implementing the first interface 120 and at least one pin implementing the second interface 130 may be included in separate regions so as not to overlap each other, and may be implemented as respective interfaces. .

Meanwhile, the first interface 120 and the second interface 130 include an RF terminal, a component output terminal, a composite output terminal, an optical output terminal, an HDMI output terminal, and a D-SUB output port. , a DVI output terminal, and the like.

Referring back to FIG. 4 , according to an embodiment of the present disclosure, the cabinet 100 may include a memory 140 . An operating system (O/S) for driving the cabinet 100 and the plurality of display modules 110 included in the cabinet 100 may be stored in the memory 140 .

In addition, according to various embodiments of the present disclosure, software programs and applications for operating the display module 110 may be stored in the memory 140, and various data such as various data input, set, or generated during execution of the program or application may be stored. Information can be stored. For example, information about a test image for identifying connectivity between the cabinet 100 and another adjacent cabinet connected through the second interface 130 may be stored in the memory 140 .

Meanwhile, according to an embodiment of the present disclosure, the cabinet 100 includes the processor 150. The processor 150 controls the overall operation of the cabinet 100 . Specifically, the processor 150 may be connected to each component of the cabinet 100 to control the overall operation of the cabinet 100 .

According to an embodiment, the processor 150 includes a digital signal processor (DSP), a microprocessor, a central processing unit (CPU), a micro controller unit (MCU), and a micro processing unit (MPU). unit), Neural Processing Unit (NPU), controller, application processor (AP), timing controller (TCON), etc., but is described as the processor 150 in this specification.

In addition, the processor 150 may be implemented as a system on chip (SoC), large scale integration (LSI), or a field programmable gate array (FPGA). Also, the processor 150 may include volatile memory such as SRAM.

Hereinafter, with reference to FIGS. 5 to 18 , a cabinet capable of identifying whether a connection between a cabinet and an adjacent cabinet is appropriately made according to an embodiment of the present disclosure and a control method thereof will be described in detail.

5 is a flowchart schematically illustrating a method for controlling a cabinet according to an embodiment of the present disclosure, and FIG. 6 is a flowchart schematically illustrating a method for checking connectivity between a cabinet and another adjacently connected cabinet according to an embodiment of the present disclosure. is an example shown in

Referring to FIG. 5 , according to an embodiment of the present disclosure, first, the processor 150 of the cabinet 100 detects that the test device 200 is connected to the first interface 120 (S410). Then, the processor 150 controls the plurality of display modules 110 included in the cabinet to display at least one test image stored in the memory 140 (S420).

Specifically, referring to FIG. 6 , when the cabinet 100 and the test device 200 are connected through the first interface 120, the processor 150 receives information from the test device 200 through the first interface 120. A test image output signal may be received. Further, the processor 150 extracts at least one test image stored in the memory 140 in response to the image output signal, and the extracted test image is displayed on the plurality of display modules 110 included in the cabinet 100. A plurality of display modules 110 are controlled to be displayed. Meanwhile, in FIG. 6 , a cabinet displayed in white indicates a cabinet displaying a test image, whereas a cabinet indicated in gray indicates a cabinet in which a test image is not displayed. This is the same in FIGS. 11 and 15 as well.

Meanwhile, as described above, in implementing the cabinet 100, the plurality of display modules 110 display one area of the test image corresponding to the position where each display module 110 is disposed. Since this has been described above, it will be omitted.

Meanwhile, the processor 150 transmits at least one test image displayed through the plurality of display modules 110 to the first cabinet 100-1 through the second interface 130 (S430).

In this specification, the first cabinet 100 - 1 refers to another cabinet disposed adjacent to a cabinet connected to the cabinet 100 through the second interface 130 . More specifically, the first cabinet 100-1 is disposed in a first direction with respect to the cabinet 100 and is connected to the cabinet 100 through the second interface 130 using a cable 300 or the like. I mean the cabinet.

In this specification, the first direction refers to one direction in which image information is transmitted between the plurality of cabinets 100 . Referring back to FIG. 3, when the cabinet 100-G disposed on the upper side of the three cabinets receives image information from an external device, the received image information is transmitted to the cabinet 100-F disposed in the center. , If it is assumed that the cabinet 100-F disposed in the center transmits image information received from the cabinet 100-G disposed on the upper side to the cabinet 100-E disposed on the lower side, the first direction is , corresponds to the (-) direction of the y-axis. At this time, the first cabinet 100-1 is the cabinet 100-E disposed on the lower side with respect to the central cabinet 100-F.

Meanwhile, in order to implement the modular display device 1000, assuming that the plurality of cabinets 100 are sequentially included in the modular display device 1000 and then combined with the cabinets included in the previous order, the first cabinet 100- 1) may mean a cabinet of a previous sequence of the cabinet 100. For example, referring to FIG. 3 again, it is assumed that three cabinets 100-E, 100-F, and 100-G are sequentially combined to implement the modular display device 1000. At this time, the lower cabinet 100-E is disposed, the central cabinet 100-F is disposed and combined with the lower cabinet 100-E, and then the upper cabinet 100 Assuming that -G) is arranged and coupled to the central cabinet 100-F, the first cabinet 100-1 has the previous sequence number with respect to the upper cabinet (third cabinet) 100-G. This may be a centrally located cabinet (second cabinet) 100-F disposed in the modular display device 1000.

Meanwhile, the first cabinet 100 - 1 may be determined relative to each cabinet 100 constituting the modular display device 1000 . Referring to the above example again, with respect to the centrally disposed cabinet 100-F, the first cabinet 100-1 corresponds to the centrally disposed cabinet 100-F in the first direction, the -y axis. It is a cabinet that is arranged and connected in the direction. That is, the first cabinet 100-1 for the centrally disposed cabinet 100-F is the lower cabinet 100-E. However, the first cabinet 100-1 relative to the cabinet 100-G disposed on the upper side is disposed in the -y axis direction, which is the second first direction, with respect to the cabinet 100-G disposed on the upper side. It is a connected cabinet. Accordingly, the first cabinet 100-1 relative to the cabinet 100-G disposed on the upper side is the cabinet 100-F disposed in the center.

Referring back to FIG. 6 , the processor 150 transmits the test image to the first cabinet 100-1 through the second interface 130. In this case, the at least one test image displayed on the cabinet 100 may be displayed on the first cabinet 100 - 1 receiving the at least one test image through the second interface 130 .

At this time, according to an embodiment of the present disclosure, at least one test image is displayed on the second interface 130 as the first cabinet 100-1 and the cabinet 100 are normally connected through the second interface 130. It can be transmitted to the first cabinet 100-1 through.

Specifically, according to an embodiment of the present disclosure, a test image transmitted through the second interface 130 is the same as a test image displayed on the plurality of display modules 110 of the cabinet 100 . For example, after the processor 150 detects the connection between the cabinet 100 and the test device 200 through the first interface 120, the display module 110 is configured to display a test image A among a plurality of test images. If controlled, the processor 150 transmits the displayed test image A to the first cabinet 100-1 through the second interface 130. At this time, the processor 150 transmits the test image A to the first cabinet 100-1 only when the connection between the cabinet 100 and the first cabinet 100-1 is normally made through the second interface 130. can Therefore, the user observes whether the same test image A is output from the cabinet 100 and the first cabinet 100-1 connected to the test device 200, and if the test image A is not output to the first cabinet, the cabinet It will be possible to identify that the connection between (100) and the first cabinet (100-1) has been made abnormally.

Meanwhile, according to another embodiment of the present disclosure, the processor 150 stores the memory of the first cabinet 100-1, not the test image, to the first cabinet 100-1 through the second interface 130. A signal requesting display of the stored test image may be transmitted. At this time, the signal is transmitted to the first cabinet 100-1 through the second interface 130 as the first cabinet 100-1 and the cabinet 100 are normally connected through the second interface 130. can

Meanwhile, a test image displayed in the cabinet 100 may be changed. For example, even though the cabinet 100 and the first cabinet 100-1 are correctly connected, interference from external signals, and the first cabinet 100-1 need to switch from the standby mode to the turn-on mode. The transmission of the test image to the first cabinet 100-1 may be delayed for a predetermined time or the output of the test image of the first cabinet 100-1 may be delayed due to various reasons such as buffer time. Accordingly, the processor 150 displays a plurality of test images, transmits the plurality of test images to the first cabinet 100-1, and allows the user to observe whether the plurality of test images are output, so that the cabinet 100 Allows more precise identification of connectivity between Hereinafter, an embodiment of the present disclosure related to this will be described.

7 is a flowchart schematically illustrating a method of changing a test image displayed in a cabinet according to an embodiment of the present disclosure.

Referring to FIG. 7 , according to an embodiment of the present disclosure, when it is detected that the test device 200 is connected to the first interface 120, the processor 150 performs a first test among a plurality of test images stored in a memory. A plurality of display modules 110 are controlled to display an image (S421).

The first test image is set to be displayed first among a plurality of test images stored in the memory 140 when the processor 150 detects a connection between the cabinet 100 and the test device 200 through the first interface 120. I mean the test video. Specifically, a plurality of test images may be stored in the memory 140 . At this time, the order of displaying the plurality of test images on the cabinet 100 may be set in advance and stored in the memory 140 .

At this time, when the processor 150 detects the connection between the cabinet 100 and the test device 200 through the first interface, the plurality of test images included in the cabinet 100 are displayed first among the plurality of test images. The display module 110 may be controlled. Accordingly, even if the test device 200 is separated from the cabinet 100 and then connected again through the first interface 120, the processor 150 uses a first test image among a plurality of test images stored in the memory 140. By extracting , the first test image may be output through the plurality of display modules 110 .

Meanwhile, after the cabinet 100 and the test device 200 are connected, the image displayed through the plurality of display modules 110 of the cabinet 100 is a test image other than the preset first test image, or the first test image If is not displayed, the user may identify that the connection between the cabinet 100 and the test device 200 is abnormal.

Referring back to FIG. 7 , according to an embodiment of the present disclosure, while the first test image is being displayed, the processor 150 requests the test device 200 to change the images displayed on the plurality of display modules 110 . Receives a command to do (S440).

Specifically, the processor 150 controls the plurality of display modules to display the first test image (S421) and transmits the first test image to the first cabinet through the second interface 130 (S431). Also, while the first test image is displayed, the processor 150 may receive a command requesting a change of the test image or a signal corresponding thereto from the test device 200 through the first interface 120 . That is, as the cabinet 100 and the test device 200 are connected through the first interface 120, the processor 150 receives a test image output signal received from the test device 200 and commands for requesting a change of the test image. A signal corresponding to can be received.

Meanwhile, according to an embodiment of the present disclosure, when the processor 150 receives a command requesting a change of the displayed test image or a signal corresponding thereto from the test device 200, the processor 150 selects a second test image from among a plurality of test images. A plurality of display modules 110 are controlled to display (S450).

The second test image means a test image set to be displayed after the first test image.

Specifically, when the processor 150 receives a command requesting a change of the test image from the test device 200 while the first test image is being displayed (S440), the processor 150 is configured to display the second test image after the first test image. 2 Test images are extracted from the memory 140. Also, the processor 150 controls the plurality of display modules 110 to change the first test image displayed on the plurality of display modules 110 into a second test image.

Meanwhile, a command to change a test image received by the processor 150 from the test device 200 or a signal corresponding thereto may further include information on the second test image. Through this, even if the display order of the plurality of test images stored in the memory 140 is not set, the processor 150, based on the information about the second test image included in the command to change the received test image, displays the plurality of test images. The image displayed through the display module 110 may be changed from the first test image to the second test image.

Meanwhile, according to an embodiment of the present disclosure, the processor 150 displays the second test image (S450) and transmits the second test image to the first cabinet 100-1 through the second interface 130. It does (S460).

The first cabinet 100-1 receives second test image information from the cabinet 100 through the second interface 130 while displaying the first test image received from the cabinet. Accordingly, the first cabinet 100-1 changes the first test image displayed through the plurality of display modules included in the first cabinet 100-1 into a second test image. That is, if the processor 150 of the cabinet 100 changes the test image from the first test image to the second test image based on a command requesting a change of the test image received from the test device 200, the first cabinet The processor 150 - 1 changes the test image from the first test image to the second test image based on receiving information about the second test image, which is a new test image, from the cabinet 100 .

Meanwhile, according to an embodiment of the present disclosure, the second test image shows the second interface 130 as the cabinet 100 and the first cabinet 100-1 are normally connected through the second interface 130. It can be transmitted to the first cabinet (100-1) through. Therefore, even though the first test image is normally displayed in the first cabinet 100-1, when the second test image is not displayed in the first cabinet 100-1 thereafter, the cabinet 100 and the first test image are displayed. The user will be able to identify that the normal connection state of the cabinet 100-1 is changed to an abnormal connection state thereafter.

Meanwhile, according to an embodiment of the present disclosure, while displaying the second test image, the processor 150 may receive a command requesting a change of the test image or a signal corresponding thereto from the test device 200 . Accordingly, the processor 150 may control the plurality of display modules 110 to display the third test image in the next order set to be displayed in the cabinet 100 after the second test image. Also, after the third test image is displayed, the processor 150 may transmit the third test image to the first cabinet 100 - 1 through the second interface 130 . That is, the process of changing the test image displayed on the plurality of display modules 110 included in each cabinet is repeated based on the command requesting the change of the test image received from the test device 200 described above.

Meanwhile, according to an embodiment of the present disclosure, the processor 150 may transmit a signal requesting to change the test image to the first cabinet through the second interface. Specifically, the processor 150 changes the test image displayed on the plurality of display modules of the first cabinet 100-1, not the second test image, on the first cabinet 100-1 through the second interface. You can send a request signal. In addition, the first cabinet 100-1 receiving the signal requesting a change of the test image changes the test image displayed on the plurality of displays from the first test image to the second test image. Meanwhile, for this purpose, according to an embodiment of the present disclosure, the same plurality of test images may be stored in the memory of each cabinet, and the display order of the plurality of test images may also be set identically for the plurality of cabinets. .

Meanwhile, according to an embodiment of the present disclosure, the processor 150 requests the test device 200 to change the test image received from the test device 200 as a button provided on the test device 200 is pressed. commands can be received.

8 is an exemplary diagram of a test device according to an embodiment of the present disclosure.

Referring to FIG. 8 , according to an embodiment of the present disclosure, the test device 200 includes an output unit 210 including a connection terminal enabling connection with the cabinet 100 through the first interface 120. can include For example, when the first interface 120 is implemented with a plurality of pins, the output unit 210 of the test device 200 includes a plurality of holes into which the plurality of pins can be inserted. It can be implemented as a receptacle that However, it is not limited thereto, and the output unit 210 includes an RF terminal, a component output terminal, a composite output terminal, an optical output terminal, an HDMI output terminal, a D-SUB output port, and a DVI output terminal. etc. can be implemented.

In addition, the test device 200 may further include an interface 220 that outputs a command requesting a change of the test image or a signal corresponding thereto to the cabinet through the output unit 210 . At this time, the interface 220 may be implemented as a button. As the button provided in the test device 200 is pressed, the test device 200 changes the test image through the output unit 210 A command requesting or a signal corresponding thereto may be output.

That is, when the processor 150 of the cabinet 100 detects a connection between the cabinet 100 and the test device 200 through the first interface 120, the plurality of display modules 110 display the first test image. And then, while the first test image is displayed, as the button provided on the test device 200 is pressed once, a command requesting a change of the test image is received from the test device 200, and accordingly the test The image is changed from the first test image to the second test image. Meanwhile, when the processor 150 receives a command requesting a change of the test image again from the test device 200 as the button provided on the test device 200 is pressed once while the second test image is displayed, The test image is changed from the second test image to the third test image. However, the present invention is not limited thereto, and the number of times the button is pressed, which is set for the button for outputting a command or signal requesting a change of the test image, may be variously set.

Meanwhile, when the processor 150 receives a command requesting a change of the test image or a signal corresponding thereto multiple times from the test device 200 for a predetermined time while the first test image is displayed, the processor 150 receives the second test image. Instead of the test image, a test image corresponding to the number of times a command requesting a test image is received may be output. For example, if the processor 150 receives a command requesting a change of the test image twice for a preset time of 0.1 second while the first test image is displayed, the first test image becomes the second test image. Instead, it may be changed to a third test image.

Meanwhile, the test device 200 may be implemented as a diagnostic jig device for checking connectivity between a plurality of cabinets.

9 is an exemplary diagram for explaining a light emitting element constituting a pixel of a display module included in a cabinet according to an embodiment of the present disclosure.

Meanwhile, as described above, according to an embodiment of the present disclosure, each of the plurality of display modules 110 includes a plurality of light emitting elements 111 implementing a plurality of pixels. In this case, each display module 110 may further include a plurality of sub-pixels constituting one pixel. More specifically, the display module 110 includes a plurality of sub-pixels constituting one pixel, and at this time, the display module 110 includes a red light emitting device 111-1 implementing each sub-pixel. , a green light emitting device 111-2 and a blue light emitting device 111-3. That is, the display module 110 may include a plurality of red light emitting elements 111-1, green light emitting elements 111-2, and blue light emitting elements 111-3 constituting one pixel as a sub-pixel. . In addition, a white light emitting device may be added to the embodiment of the present disclosure. Meanwhile, although not clearly shown in the drawing, each display module 110 may include a driving circuit connected to the light emitting element and driving the light emitting element with a control pulse signal having a variable size.

The processor 150 of the cabinet 100 displays test images corresponding to each of the light emitting devices (red light emitting device, green light emitting device, and blue light emitting device) and transmits them to the first cabinet 110-1, respectively. Connectivity with adjacent cabinets can be identified multiple times. To this end, the plurality of test images stored in the memory 140 of the cabinet 100 may include a white image, a red image, a green image, and a blue image.

According to an embodiment of the present disclosure, the processor 150, when detecting that the test device 200 is connected to the first interface 120, displays a white image stored in the memory 140, the plurality of display modules 110 ) can be controlled. Specifically, the processor 140 displays a white image displayed by driving the red light emitting device 111-1, the green light emitting device 111-2, and the blue light emitting device 111-3 as the first test image. Then, the white image or information related thereto is transmitted to the first cabinet 110-1 through the second interface 130. In this case, when the cabinet 100 and the first cabinet 100-1 are normally connected, the same white image displayed on the cabinet 100 is displayed on the first cabinet 100-1.

On the other hand, according to an embodiment of the present disclosure, the processor 150 receives a command requesting a change of images displayed on the plurality of display modules 110 from the test device 200 multiple times, so that the red image and the green image are received. And it can control the plurality of display modules 110 to sequentially display the blue image.

Specifically, according to an embodiment of the present disclosure, a second test image ordered to be displayed after the first test image is a red image, and a third test image ordered to be displayed after the second test image is a green image. , and the fourth test image, the order of which is set to be displayed after the third test image, may be a blue image. In this case, the red image is an image in which only the red light emitting elements among the plurality of light emitting elements are driven and displayed, the green image is an image in which only the green light emitting elements among the plurality of light emitting elements are driven and displayed, and the blue image is an image in which only the light emitting elements are driven and displayed. This means an image displayed by driving only the blue light emitting element.

On the other hand, if the processor 150 receives a command requesting a change of the test image from the test device 200 while the white image is displayed, the processor 150 converts the test image displayed through the plurality of display modules 110 from the white image. A plurality of display modules 110 may be controlled to change to a red image. In addition, when a command requesting a change in the test image is received from the test device 200 while the red image is displayed, a plurality of display modules 110 change the test image displayed from the red image to the blue image. The display module 110 may be controlled. That is, after the processor 150 displays a white image, which can be output only when all of the red, green, and blue light emitting elements are driven, through the display module, the processor 150 sequentially generates test images for independently driving each light emitting element. can be displayed as However, it is not limited thereto, and the order in which the white image, the red image, the blue image, and the green image are displayed and transmitted to the first cabinet may be variously set.

Meanwhile, according to an embodiment of the present disclosure, the cabinet 100 may display a test image received from another cabinet instead of at least one test image stored in the memory 140 . Hereinafter, with reference to FIGS. 10 to 16, an embodiment of the present disclosure related to this will be described in detail.

10 is a flowchart schematically illustrating a method of controlling a cabinet according to another embodiment of the present disclosure. 11 is an exemplary diagram schematically illustrating a method of determining connectivity between a cabinet and a first cabinet and a connectivity between a cabinet and a second cabinet based on a test image received from a second cabinet, according to an embodiment of the present disclosure; am.

According to an embodiment of the present disclosure, the cabinet 100 may further include a third interface 160 connected to a second cabinet adjacent to the cabinet.

In this case, the processor 150 of the cabinet 100 may be connected to another adjacent cabinet through the third interface 160 . At this time, according to an embodiment of the present disclosure, the cabinet 100 may be connected to a second cabinet 100-2 different from the first cabinet 100-1 through the third interface 160. The processor 150 may transmit/receive various information (eg, image information, coordinate information, ID information, etc.) with the second cabinet 100-2 connected through a cable connected to the third interface 160. .

Meanwhile, the third interface 160 includes each interface (first interface to third interface) within one interface including a plurality of pins together with the first interface 120 and the second interface 130. ) may be implemented by being separated into at least one pin corresponding to. Since this has been described above, detailed descriptions will be omitted.

Meanwhile, in this specification, the second cabinet 100 - 2 refers to another cabinet disposed adjacent to the cabinet 100 connected to the cabinet 100 through a third interface. More specifically, the second cabinet 100 - 2 is another cabinet disposed in the second direction with respect to the cabinet 100 and connected to the cabinet 100 by a cable or the like through the third interface 130 . At this time, the second cabinet 100 - 2 is distinguished from the first cabinet 100 - 1 disposed in the first direction with respect to the cabinet 100 .

In this specification, the second direction refers to one direction for transmitting video information between a plurality of cabinets. Referring back to FIG. 3, when the cabinet 100-E disposed on the lower side of the three cabinets receives image information from an external device, the received image information is transmitted to the cabinet 100-F disposed in the center. , If it is assumed that the cabinet 100-F disposed in the center transmits image information received from the cabinet 100-E disposed on the lower side to the cabinet 100-G disposed on the upper side, the second direction is , corresponds to the (+) direction of the y-axis. At this time, the second cabinet 100-G is a cabinet disposed on the upper side with respect to the central cabinet 100-F. That is, according to an embodiment of the present disclosure, the second direction may be set to be opposite to the first direction.

Meanwhile, in order to implement the modular display device 1000, assuming that the plurality of cabinets 100 are sequentially included in the modular display device 1000 and then combined with the cabinets included in the previous order, the second cabinet 100- 2) may also mean a cabinet of a subsequent order of the cabinet 100. For example, referring to FIG. 3 again, it is assumed that three cabinets 100-E, 100-F, and 100-G are sequentially combined to implement the modular display device 1000. At this time, the lower cabinet 100-E is disposed, the central cabinet 100-F is disposed and combined with the lower cabinet 100-E, and then the upper cabinet 100 If it is assumed that -G) is arranged and the central cabinet 100-F is combined, the second cabinet 100-2 is the next sequential number for the centrally placed cabinet (second cabinet) 100-F. This may be the upper cabinet (third cabinet) 100-G disposed in the modular display device 1000.

Meanwhile, like the first cabinet, the second cabinet may be determined relative to each cabinet constituting the modular display device 1000 . Referring again to the above example, the second cabinet 100-2 with respect to the centrally disposed cabinet 100-F has a +y axis, which is the second direction, with respect to the centrally disposed cabinet 100-F. It is a cabinet that is arranged and connected in the direction. That is, the second cabinet 100-2 for the centrally disposed cabinet 100-F is the upper cabinet 100-G. However, the second cabinet 100-2 with respect to the cabinet 100-E disposed on the lower side is disposed and connected in the +y-axis direction, which is the second direction, with respect to the cabinet 100-E disposed on the lower side. it's a cabinet Accordingly, the second cabinet 100-2 relative to the cabinet 100-E disposed on the lower side may be the cabinet 100-F disposed in the center. In this way, the second cabinet is determined relative to each cabinet 100 constituting the modular display device 1000 .

Meanwhile, referring to FIG. 10 , according to an embodiment of the present disclosure, the processor 150 receives a test image from the second cabinet 100-2 through the third interface (S510). Specifically, referring to FIG. 11 , the processor 150 of the centrally located cabinet 100 receives test image information from the second cabinet 100-2 through the cable 300-2 connected to the third interface. . At this time, the test image received by the processor 150 from the second cabinet 100-2 is sent to the cabinet 100 from the second cabinet 100-2 through the third interface after the corresponding test image is displayed in the second cabinet. can be sent to

Meanwhile, the processor 150 may receive a test image from the second cabinet 100-2 as the cabinet 100 and the second cabinet 100-2 are normally connected through the third interface. will be.

Referring to FIG. 10 , after receiving a test image from the second cabinet 100-2, the processor 150 controls the plurality of display modules 110 included in the cabinet 100 to display the received test image. Do (S520).

Referring to FIG. 11 , the processor 150 of the cabinet 100 located in the center receives a test image from the second cabinet 100-2 located above the cabinet through the third interface. Also, the processor 150 controls the plurality of display modules 110 included in the cabinet 100 to display the test image received from the second cabinet 100-2. Through this, the user will be able to determine connectivity between the cabinet 100 and the second cabinet 100 - 2 located above the cabinet 100 based on whether or not the test image of the cabinet 100 is displayed.

Meanwhile, the processor 150 displays the test image received from the second cabinet 100-2 (S520), and then displays the test image received from the second cabinet 100-2 through the second interface 130. It is transmitted to the first cabinet 100-1 through (S530).

Referring back to FIG. 11 , the processor 150 of the cabinet 100 located in the center displays a test image received from the second cabinet 100-2 located at the top of the cabinet, and then transmits the image to the second interface 130. ) is transmitted to the first cabinet 100-1 located in the lower part of the cabinet 100 through the cable 300-1 connected to . Although not clearly shown in the drawing, when the cabinet and the first cabinet are normally connected, the test image received by the cabinet 100 from the second cabinet 100-2 is effectively transmitted to the first cabinet. And, the first cabinet 100-1 will display the received test image. Through this, the user can determine the connectivity between the cabinet 100 and the first cabinet 100-1 located below the cabinet 100, and ultimately, the user can determine the connectivity between the second cabinet 100-2 and the cabinet. After checking the connection of (100), it is possible to determine the connectivity of the three cabinets in the first direction by checking the connection between the cabinet 100 and the first cabinet 100-1.

Meanwhile, according to an embodiment of the present disclosure, while the processor 150 of the cabinet 100 displays a test image (test image B) received from the second cabinet through the third interface, the second cabinet 100- When another test image (test image C) is received from 2) through the third interface, the test image displayed in the display module can be changed from test image B to test image C. In this regard, a method in which the first cabinet receiving the second test image from the cabinet 100 changes the test image from the first test image to the second test image may be applied to the cabinet, and a detailed description thereof will be omitted.

Meanwhile, according to an embodiment of the present disclosure, the test image received by the processor 150 of the cabinet 100 from the second cabinet 100-2 is displayed after the test device 200 is separated from the cabinet 100. As it is connected to the second cabinet, it can be transmitted from the second cabinet. More specifically, immediately after the processor 150 of the cabinet 100 displays at least one test image stored in the memory 140, the test image received from the second cabinet 100-2 is ) can be transmitted from the second cabinet 100-2 as it is connected to the second cabinet after being separated from the cabinet 100. As described above, the processor 150 is connected to the cabinet through the first interface 120 ( 100) through the display module 110 when a connection between the test device 200 is detected or a command requesting a change of the test image being displayed is received from the test device 200 through the first interface 120. The test image was displayed or changed. However, according to an embodiment of the present disclosure, the processor 150 of the cabinet 100 detects the connection of the test device 200 or receives a control command from the test device 200, the second cabinet 100-2 When a test image (or information about the test image) is received from , the received test image is displayed through the plurality of display modules 110 . In this case, the second cabinet 100 - 2 may transmit test information to the cabinet based on a test device connected to the second cabinet after being separated from the cabinet 100 .

12 is a diagram for explaining a method of determining connectivity of a plurality of cabinets constituting a modular display according to an embodiment of the present disclosure.

Referring to FIG. 12 , when the processor of the cabinet F (100-F) detects a connection between the cabinet F (100-F) and the test device 200 through the first interface, at least one memory stored in the memory included in the cabinet F is detected. Displays test information of the cabinet E (100-F) corresponding to the first cabinet located in the first direction with respect to the cabinet F (100-F) through the second interface of the cabinet F (100-F). 100-E).

Thereafter, the cabinet G (100-G) located in the second direction with respect to the cabinet F (100-F) is connected to the cabinet F (100-F) through the third interface of the cabinet F (100-F), and the test device is separated from the cabinet F (100-F) and connected to the cabinet G (100-G) through the first interface of the cabinet G (100-G), the processor of the cabinet F (100-F) is Through the third interface of F), at least one test image is received from the cabinet G (100-G). At this time, the received test image is a test image stored in the memory of the cabinet G (100-G). After displaying the test image of cabinet G (100-G), the processor of cabinet F (100-F) transmits the test image to cabinet E (100-E) through the second interface of cabinet F (100-F). The test video of cabinet G (100-G) received from (100-G) is transmitted.

Then, the cabinet H (100-H) located in the second direction with respect to the cabinet G (100-G) is connected to the cabinet G (100-G) through the third interface of the cabinet G (100-G); When the test device is separated from the cabinet G (100-G) and connected to the cabinet H (100-H) through the first interface of the cabinet H (100-H), the processor of the cabinet G (100-G) 100-G) receives at least one test image from cabinet H (100-H) through a third interface. At this time, the received test image is a test image stored in the memory of the cabinet H (100-H). After displaying the test image of the cabinet H (100-H), the processor of the cabinet G (100-G) transfers the cabinet H (100-F) to the cabinet F (100-F) through the second interface of the cabinet (100-G). The test video of cabinet H (100-H) received from 100-H is transmitted. The processor of the cabinet F (100-F), having received the test image of the cabinet H from the cabinet G (100-G) through the third interface of the cabinet F (100-F), displays the received test image of the cabinet H. After displaying, the test image of cabinet H is transmitted to cabinet E (100-E) through the second interface of cabinet F (100-F).

Through this, the user observes whether a plurality of cabinets display or transmit/receive the test image of the cabinet connected to the test device whenever cabinets are sequentially combined or connected to implement a modular display device, Connectivity between adjacent cabinets can be determined.

13A and 13B are views for explaining a method of determining connectivity of a plurality of cabinets implementing a modular display in a first direction, according to an embodiment of the present disclosure.

Referring to FIG. 13A , according to an embodiment of the present disclosure, a first direction in which image information is transmitted and received may be set as an arrow. Specifically, when the cabinet Q (100-Q) positioned at the top right of the plurality of cabinets receives image information from an external device (eg, a screen controller), the cabinet positioned at the lower side of the cabinet Q (100-Q) Video information received from an external device is transmitted to P(100-P). Then, the cabinet P (100-P) transmits the image information received from the cabinet Q (100-Q) to the cabinet O (100-O) on the lower side of the cabinet P (100-P). Then, the cabinet O (100-O) transmits the image information received from the cabinet P (100-P) to the cabinet L (100-L) on the left side of the cabinet O (100-O). According to this method, the cabinet I (100-I) finally receives the image information that the cabinet Q (100-Q) receives from the external device from the cabinet J (100-J).

At this time, referring to FIG. 13B, the cabinet J (100-J) is connected to the cabinet I (100-I) through the second interface of the cabinet J (100-J), and the first interface of the cabinet J (100-J) When connected to the test device 200 through an interface, the test image stored in the memory of the cabinet J (100-J) is output and transmitted to the cabinet I (100-I) through the second interface of the cabinet J (100-J). Transmit the test video. Then, the cabinet K (100-K) is connected to the upper side of the cabinet J (100-J) via the third interface of the cabinet J (100-J) and the second interface of the cabinet K (100-K), and the test When the device is separated from the cabinet J (100-J) and connected to the cabinet K (100-K) through the first interface of the cabinet K (100-K), the cabinet K (100-K) is connected to the cabinet K (100-K). The test image stored in the memory of K) is displayed. The cabinet K (100-K) transmits the displayed test image to the cabinet J (100-J) through the second interface of the cabinet K (100-K). Thereafter, the cabinet J (100-J) displays the received test image of the cabinet K (100-K) and then displays the test image of the cabinet K (100-K) through the second interface of the cabinet J (100-J). Send to cabinet I (100-I). This process will be repeated as a cabinet is newly included in the modular display device and connected to an adjacent cabinet. Ultimately, referring to FIG. 13B , assuming that a command requesting a change of a test image is not transmitted from the test device, in order to detect the connectivity of the nine cabinets implementing the modular display device 1000 in the first direction. Cabinet J (100-J) performs eight test image transmission processes to cabinet I (100-I). That is, in the process of combining or connecting cabinets to implement a modular display device, the user can connect the test device and the newly added cabinet, as well as the connectivity between the newly added cabinet and the previously installed cabinet, as well as the previously installed and connected Connectivity between multiple cabinets can also be verified.

14 is a flowchart schematically illustrating a cabinet control method for identifying connectivity between a plurality of cabinets in a second direction according to an embodiment of the present disclosure. 15 is an exemplary diagram for explaining a cabinet control method for identifying connectivity between a plurality of cabinets in a second direction according to an embodiment of the present disclosure. 16 is a diagram for explaining a method of determining connectivity of a plurality of cabinets implementing a modular display in a second direction, according to an embodiment of the present disclosure.

When the confirmation of connectivity in the first direction is completed, the processor 150 checks connectivity in the second direction between the cabinet and another cabinet. To this end, the processor 150 receives the test image (or signal related to the test image) from the first cabinet 100-1, which has transmitted the test image (or signal related to the test image), through the second interface. . In addition, the processor 150 transmits the test image (or signal related to the test image) received from the first cabinet 100-1 to the second cabinet 100-2 through the third interface. A signal related to the test image) is transmitted. Hereinafter, an embodiment of the present disclosure for verifying connectivity between a plurality of cabinets in a second direction, opposite to the first direction, will be described.

First, referring to FIG. 14 , the processor 150 of the cabinet 100 receives a test image from the first cabinet 100-1 through the second interface 130 (S540).

Specifically, the processor 150 receives test image information from the first cabinet 100-1 through the cable 300-1 connected to the second interface 130 of the cabinet 100. At this time, the test image received by the processor 150 from the first cabinet 100-2 is displayed in the first cabinet 100-1 through the second interface 130 to the first cabinet 100. -2) to the cabinet 100.

Meanwhile, the processor 150 receives a test image from the first cabinet 100-1 as the cabinet 100 and the first cabinet 100-1 are normally connected through the second interface 130. You will be able to.

Referring back to FIG. 14 , the processor 150 controls the plurality of display modules 110 to display the test image received from the first cabinet 100-1 (S550).

Referring to FIG. 15 again, the processor 150 of the cabinet 100 located in the center receives a test image from the first cabinet 100-1 located in the lower part of the cabinet through the second interface, and then the processor 150 controls the plurality of display modules 110 included in the cabinet 100 to display the test image received from the first cabinet 100-1. Through this, the user will be able to determine connectivity between the cabinet and the first cabinet located below the cabinet, based on whether or not the test image of the cabinet 100 is displayed.

Referring back to FIG. 14 , the processor 150 transmits the test image received from the first cabinet 100-1 to the second cabinet through the third interface (S570). At this time, according to an embodiment of the present disclosure, the test image received from the first cabinet 100-1 may be displayed on the first cabinet receiving the test image through a third interface.

Referring back to FIG. 15, the processor 150 of the cabinet 100 located in the center displays a test image received from the first cabinet 100-1 located in the lower part of the cabinet, and then displays the image connected to the third interface. It is transmitted to the second cabinet 100-2 located on the top of the cabinet 100 through the cable 300-2. Although not clearly shown in the drawing, when the cabinet 100 and the second cabinet 100-2 are normally connected, the test image received by the cabinet 100 from the first cabinet 100-1 is transferred to the second cabinet. will be sent effectively. And, the second cabinet 100-2 will display the received test image. Through this, the user can determine the connectivity between the cabinet 100 and the second cabinet 100-2 located above the cabinet, and ultimately, the user can determine the connectivity between the first cabinet 100-2 and the cabinet 100. After checking the connection of the cabinet 100 and the second cabinet, it is possible to determine the connectivity of the three cabinets in the second direction.

Meanwhile, according to an embodiment of the present disclosure, when the processor 150 receives a test image from the first cabinet 100-1, the test device 200 connected to the cabinet 100 is separated, and the first It may be transmitted from the first cabinet 100-1 as it is connected to the cabinet 100-1. Since this has been described above, a detailed description thereof will be omitted.

Meanwhile, referring to FIG. 16 , according to an embodiment of the present disclosure, the processor 150 of the cabinet determines connectivity in the second direction, unlike the process of determining connectivity in the first direction multiple times. The process can be performed once. Specifically, if it is identified that the connection between the plurality of cabinets 100 implementing the modular display device 1000 in the first direction is normally made based on the connectivity determination in the first direction, the entire test device 200 Among the cabinets, it is connected to a cabinet that has no history of being connected. Preferably, when a plurality of cabinets are sequentially combined to implement the modular display device 1000, the first cabinet (fifth cabinet) may correspond to this. Referring to FIG. 16 , a cabinet I 100-I corresponds to a cabinet connected to a test device to determine connectivity in the second direction. Meanwhile, when the test device 200 is connected to the first interface of the cabinet I 100-I, the cabinet I 100-I outputs at least one test image stored in the memory of the cabinet I 100-I. Then, through the third interface of the cabinet I (100-I), to the cabinet J (100-J) located on the upper side of the cabinet I (100-I), which is the second display module for the cabinet I (100-I). Send test video. When the plurality of display modules are normally connected in the second direction, the test image of the cabinet I (100-I) is finally transmitted to the cabinet Q (100-Q) and displayed in the cabinet Q (100-Q). It will be. Through this, the user can determine whether or not connections between the plurality of cabinets implementing the modular display device in the first and second directions are normally made.

17 is an exemplary view schematically illustrating that a modular display device implemented with a plurality of cabinets outputs an image according to an embodiment of the present disclosure.

As described above, the modular display device 1000 receives image information from the screen controller 600 . Specifically, when at least one cabinet among a plurality of cabinets implementing the modular display device 1000 receives image information from the screen controller, the at least one cabinet that has received the image information transmits the received image information to other adjacent cabinets. transmit In this way, as the cabinet receiving the image information transmits the image information to other adjacent cabinets, all cabinets constituting the modular display device 1000 can share the image information. At this time, referring to FIG. 17 , the modular display device 1000 may receive image information from the screen controller 600 in both directions. Specifically, when a cabinet Q (100-Q) among a plurality of cabinets receives image information from the screen controller 600, the plurality of cabinets transmit and receive image information in a first direction. On the other hand, when cabinet I (100-I) among the plurality of cabinets receives image information from the screen controller 600, the plurality of cabinets transmit and receive image information in the second direction. Through this, the modular display device 1000 may selectively select a transmission/reception path of image information, and may operate a transmission/reception route of image information in advance. Specifically, when transmission and reception of video information in the first direction is impossible because connectivity to a specific path, for example, the first direction, is damaged, video information can be transmitted and received based on connectivity to the remaining path, that is, the second direction. can

Meanwhile, the screen controller 600 not only transmits image information to the modular display device 1000, but also luminance and volume of each cabinet constituting the modular display device 1000 and a plurality of display modules included in each cabinet. can control.

Meanwhile, in FIG. 17, the screen controller 600 is shown as a separate device from the modular display device 1000, but is not limited thereto, and the screen controller 600 is a central processing unit of the modular display device 1000. unit (CPU)), MCU (Micro Controller Unit), etc.

18 is a detailed block diagram of a cabinet according to an embodiment of the present disclosure.

Referring to FIG. 18, the cabinet includes a plurality of display modules 110, a first interface 120, a second interface 130, a memory 140, a processor 150, a third interface 160, and a communication unit. 170 , an interface 180 and a speaker 190 . Since the detailed description of the plurality of display modules 110, the first interface 120, the second interface 130, the memory 140, the processor 150, and the third interface 160 has been described above, it will be omitted. do.

The cabinet 100 may transmit and receive various types of information by communicating with various external devices through the communication unit 170 using wireless communication technology or mobile communication technology. For example, the cabinet 100 may transmit and receive image information from an external device or the screen controller 600 through the communication unit 170 . At this time, the processor 150 adjusts the resolution of the received image information based on the number of display modules included in the cabinet 100 and the arrangement of the plurality of display modules, or the cabinet 100 is installed on the modular display device. A part of the image corresponding to the placed position may be identified as 150 . On the other hand, wireless communication technologies include, for example, Bluetooth, Bluetooth Low Energy, CAN communication, Wi-Fi, Wi-Fi Direct, ultra-wideband Communication (UWB, ultrawide band), Zigbee, infrared communication (IrDA, Infrared Data Association), or NFC (Near Field Communication) may be included. As mobile communication technologies, 3GPP, Wi-Max ), LTE (Long Term Evolution), 5G, etc. may be included.

Meanwhile, the cabinet 100 may receive a control command or the like from another device provided separately from the cabinet 100 through the input interface 180. To this end, the input interface 180 may be provided to be connectable with an external device. can For example, the input/output interface 183 may be a Universal Serial Bus (USB) terminal, in addition to at least one of various interface terminals such as a High Definition Multimedia Interface (HDMI) terminal or a Thunderbolt terminal. can include

Meanwhile, the cabinet 100 may further include a speaker 190 as a component that outputs various kinds of externally received audio information or various notification sounds or voice messages. In this case, the cabinet 100 may provide response results and operation results to the user's voice in the form of audio through the speaker 190 .

Meanwhile, various embodiments described above may be implemented in a recording medium readable by a computer or a similar device using software, hardware, or a combination thereof. In some cases, the embodiments described herein may be implemented by the processor 150 itself. According to software implementation, embodiments such as procedures and functions described in this specification may be implemented as separate software modules. Each of the software modules may perform one or more functions and operations described herein.

Meanwhile, computer instructions for performing the processing operation of the display module 110 according to various embodiments of the present disclosure described above may be stored in a non-transitory computer-readable medium. there is. When the computer instructions stored in the non-transitory computer readable medium are executed by the processor of the specific device, the processing operation in the display module 110 according to various embodiments described above is performed by the specific device.

A non-transitory computer-readable medium is not a medium that stores data for a short moment, such as a register, cache, or memory, but a medium that stores data semi-permanently and can be read by a device. Specific examples of the non-transitory computer readable media may include CD, DVD, hard disk, Blu-ray disk, USB, memory card, ROM, and the like.

Although the preferred embodiments of the present disclosure have been shown and described above, the present disclosure is not limited to the specific embodiments described above, and is common in the technical field belonging to the present disclosure without departing from the gist of the present disclosure claimed in the claims. Of course, various modifications are possible by those with knowledge of, and these modifications should not be individually understood from the technical spirit or perspective of the present disclosure.

100: cabinet
110: display module
120: first interface
130: second interface
140: memory
150: processor
160: third interface

Claims (16)

In a cabinet constituting a modular display device,
a plurality of display modules;
a first interface;
a second interface connected to a first cabinet adjacent to the cabinet;
a memory in which at least one text image is stored; and
When it is detected that the test device is connected to the first interface, the plurality of display modules are controlled to display the at least one test image, and the at least one test image is transmitted to the first cabinet through the second interface. Including; a processor that
wherein the at least one test image is displayed on the first cabinet that has received the at least one test image through the second interface. According to claim 1,
the processor,
When it is detected that the test device is connected to the first interface, the plurality of display modules are controlled to display a first test image among a plurality of test images stored in the memory, and while the first test image is displayed, the When a command requesting a change of the image displayed on the plurality of display modules is received from the test device, the plurality of display modules are controlled to display a second test image among the plurality of test images, and the second test image is displayed on the display module. to the first cabinet through a second interface;
The second test image is displayed on the first cabinet that has received the second test image through the second interface. According to claim 2,
The command is
A cabinet received from the test device when a button provided in the test device is pressed. According to claim 2,
Each of the plurality of display modules includes a plurality of light emitting elements constituting a plurality of pixels,
The plurality of light emitting elements include a red light emitting element, a green light emitting element, and a blue light emitting element,
The plurality of test images include a white image, a red image, a green image, and a blue image,
the processor,
When it is detected that the test device is connected to the first interface, a command for controlling the plurality of display modules to display the white image and requesting a change of the image displayed on the plurality of display modules is issued from the test device a plurality of times. Upon reception, the cabinet controls the plurality of display modules to sequentially display the red image, the green image, and the blue image. According to claim 1,
the cabinet,
A third interface connected to a second cabinet adjacent to the cabinet; further comprising;
the processor,
When a test image is received from the second cabinet through the third interface, displaying the received test image and transmitting the received test image to the first cabinet through the second interface. According to claim 5,
The received test image,
The cabinet is received from the second cabinet as the test device is connected to the second cabinet after being separated from the cabinet. According to claim 5,
the processor,
When a test image is received from the first cabinet through the second interface, displaying the received test image and transmitting the received test image to the second cabinet through the third interface;
The test image received from the first cabinet is displayed on the first cabinet receiving the test image through the third interface. According to claim 1,
The at least one test image,
and transmitted to the first cabinet through the second interface as the first cabinet is normally connected to the second interface. In the control method of a cabinet constituting a modular display device,
detecting that the test device is connected to the first interface;
controlling a plurality of display modules to display at least one test image stored in a memory; and
Transmitting the at least one test image to a first cabinet connected to the cabinet through a second interface;
The at least one test image is displayed on the first cabinet receiving the at least one test image through the second interface. According to claim 9,
controlling the plurality of display modules to display a first test image among a plurality of test images stored in the memory when it is detected that the test device is connected to the first interface;
receiving a command requesting a change of images displayed on the plurality of display modules from the test device while the first test image is displayed;
controlling the plurality of display modules to display a second test image among the plurality of test images when a command requesting a change of the image is received; and
Transmitting the second test image to the first cabinet through the second interface;
The second test image is displayed on the first cabinet receiving the second test image through the second interface. According to claim 10,
The command is
Received from the test device when a button provided in the test device is pressed. According to claim 10,
Each of the plurality of display modules included in the cabinet includes a plurality of light emitting elements constituting a plurality of pixels,
The plurality of light emitting elements include a red light emitting element, a green light emitting element, and a blue light emitting element,
The plurality of images stored in the memory include a white image, a red image, a green image, and a blue image,
controlling the plurality of display modules to display the white image when it is detected that the test device is connected to the first interface; and
Controlling the plurality of display modules to sequentially display the red image, the green image, and the blue image when a command requesting a change of the image displayed on the plurality of display modules is received from the test device a plurality of times. Further comprising a method. According to claim 9,
receiving a test image from a second cabinet adjacent to the cabinet through a third interface;
controlling the plurality of display modules to display the received test image; and
The method further comprises transmitting the received test image to the first cabinet through the second interface. According to claim 13,
The received test image,
The method of claim 1 , wherein the test device is received from the second cabinet as it is connected to the second cabinet after being separated from the cabinet. According to claim 13,
receiving a test image from the first cabinet through the second interface;
controlling the plurality of display modules to display the received test image; and
Transmitting the received test image to the second cabinet through the third interface;
The test image received from the first cabinet is displayed on the first cabinet receiving the test image through the third interface. According to claim 8,
The at least one test image,
and transmitted to the first cabinet through the second interface as the first cabinet is normally connected to the second interface.

Images